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    Mercruiser 260 Temperature Gauge Not Working after Changing Thermostat

    Rookie here... I have learned a lot on these threads and thank you all for helping me on countless issues. This is my first post. MY BOAT 1984 Cobalt 19BR GM 5.7L Mercruiser 260 Engine (278 hrs) Raw Water Cooled MY Problem and reason for this post My temp gauge on the dash stopped working...
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